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-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0500-media-v4l2_m2m-In-buffered-mode-run-jobs-if-either-p.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0500-media-v4l2_m2m-In-buffered-mode-run-jobs-if-either-p.patch b/target/linux/bcm27xx/patches-5.10/950-0500-media-v4l2_m2m-In-buffered-mode-run-jobs-if-either-p.patch
new file mode 100644
index 0000000000..6c13d5e330
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0500-media-v4l2_m2m-In-buffered-mode-run-jobs-if-either-p.patch
@@ -0,0 +1,33 @@
+From f9ab3e8acbbd27e81a232aa671838ace4263d46a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 1 Feb 2021 18:48:47 +0000
+Subject: [PATCH] media/v4l2_m2m: In buffered mode run jobs if either
+ port is streaming
+
+In order to get the intended behaviour of the stateful video
+decoder API where only the OUTPUT queue needs to be enabled and fed
+buffers in order to get the SOURCE_CHANGED event that configures the
+CAPTURE queue, we want the device to run should either queue be
+streaming.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/v4l2-core/v4l2-mem2mem.c | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
++++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
+@@ -301,9 +301,10 @@ static void __v4l2_m2m_try_queue(struct
+
+ dprintk("Trying to schedule a job for m2m_ctx: %p\n", m2m_ctx);
+
+- if (!m2m_ctx->out_q_ctx.q.streaming
+- || !m2m_ctx->cap_q_ctx.q.streaming) {
+- dprintk("Streaming needs to be on for both queues\n");
++ if (!(m2m_ctx->out_q_ctx.q.streaming &&
++ m2m_ctx->cap_q_ctx.q.streaming) &&
++ !(m2m_ctx->out_q_ctx.buffered && m2m_ctx->out_q_ctx.q.streaming)) {
++ dprintk("Streaming needs to be on for both queues, or buffered and OUTPUT streaming\n");
+ return;
+ }
+